speedlify2

Lighthouse lab metrics and Chrome UX Report field data for a list of sites, recorded on every run and compared over time.

Measurement runs · Embed a score · Field data from the Chrome UX Report ·

chercheurd.art

https://www.chercheurd.art/

73 100 77 100 CWV AXE

Data from Aug 21, 2026, 11:26 AM UTC — 7h old.

Built Awesome · 1 measurement · since Aug 21, 2026 · last attempt 7h

Scores

73
Performance
no change
100
Accessibility
no change
77
Best Practices
no change
100
SEO
no change

Lab metrics Lighthouse, mobile

Metric Current Previous Change Best Worst Trend
LCP Largest Contentful Paint 17.56 s 17.56 s 17.56 s
CLS Cumulative Layout Shift 0 0 0
TBT Total Blocking Time 3 ms 3 ms 3 ms
FCP First Contentful Paint 1.52 s 1.52 s 1.52 s
Speed Index 3.85 s 3.85 s 3.85 s
TTFB Time to First Byte 609 ms 609 ms 609 ms

What LCP is made of

A flat LCP number tells you something regressed. The subparts tell you whether it was the server, resource discovery, the download, or rendering.

element render delay 129 ms
resource load duration 53 ms
resource load delay 26 ms
time to first byte 5 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 3.42 MB 3.42 MB 3.42 MB
Requests 27 27 27
Third-party Weight 93.5 kB 93.5 kB 93.5 kB
Third-party CPU 47 ms 47 ms 47 ms
Unused JS 53.5 kB 53.5 kB 53.5 kB
Unused CSS 0 B 0 B 0 B

By resource type

image 3.25 MB · 13 req
script 99.3 kB · 6 req
font 39.6 kB · 2 req
stylesheet 11.6 kB · 1 req
document 10.7 kB · 1 req
other 2.4 kB · 3 req
third party 93.5 kB · 5 req

Third parties 2 entities

93.5 kB transferred, 47 ms of main thread time. This is the number most likely to regress without anyone on your team shipping anything.

Yandex Metrica 92.4 kB · 47 ms CPU
instant.page 1.1 kB · 0 ms CPU

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 1.34 s 1.34 s 1.34 s
Long Tasks 3 3 3
DOM Elements 525 525 525
A11y Failures 0 0 0
A11y Failing Nodes 0 0 0

Main thread work

other 709 ms
script evaluation 244 ms
style layout 240 ms
paint composite render 60 ms
garbage collection 41 ms
script parse compile 34 ms
parse HTML 17 ms

Axe violations axe-core , full rule set

The axe run failed: Navigation timeout of 120000 ms exceeded

Hygiene

Changes rarely — which is exactly why a change is worth noticing.

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2

Measurement log

Every stored run for this URL, newest first. Failures are kept as records — "this site was down on Tuesday" is data too.

When PerfLCPCLSTBTWeight RunsSpreadBenchTook
Aug 21, 2026, 11:26 AM UTC 73 17.56 s 0 3 ms 3.42 MB 3/3 ±19 2,489 251s

Embed this score

Live below, then the markup that produces it. Drop that on any page to show chercheurd.art's scores, updated whenever this instance re-measures — more about the component. Don’t forget to bundle the speedlify-score.js component code into your site!

<speedlify-score speedlify-url="https://zachleat.github.io/speedlify2/" url="https://www.chercheurd.art/"></speedlify-score>